AD7485–SPECIFICATIONS1 Parameter Specification Unit Test Conditions/Comments DYNAMIC PERFORMAN" />
參數(shù)資料
型號(hào): AD7485BSTZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 9/15頁(yè)
文件大?。?/td> 0K
描述: IC ADC 14BIT SAR 1MSPS 48-LQFP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 1M
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 80mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤(pán)
輸入數(shù)目和類型: 1 個(gè)單端,單極
REV.
–2–
AD7485–SPECIFICATIONS1
Parameter
Specification
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
2, 3
fIN = 500 kHz Sine Wave
Signal to Noise + Distortion (SINAD)
4
76.5
dB min
78
dB typ
77
dB typ
Internal Reference
Total Harmonic Distortion (THD)
4
–90
dB max
–95
dB typ
–92
dB typ
Internal Reference
Peak Harmonic or Spurious Noise (SFDR)
4
–88
dB max
Intermodulation Distortion (IMD)
4
Second-Order Terms
–96
dB typ
fIN1 = 95.053 kHz, fIN2 = 105.329 kHz
Third-Order Terms
–94
dB typ
Aperture Delay
10
ns typ
Full Power Bandwidth
40
MHz typ
@ 3 dB
3.5
MHz typ
@ 0.1 dB
DC ACCURACY
Resolution
14
Bits
Integral Nonlinearity
4
±1LSB max
±0.5
LSB typ
Differential Nonlinearity
4
±0.75
LSB max
Guaranteed No Missed Codes to 14 Bits
±0.25
LSB typ
Offset Error
4
±6LSB max
0.036
%FSR max
Gain Error
4
±6LSB max
0.036
%FSR max
ANALOG INPUT
Input Voltage
0
V min
2.5
V max
DC Leakage Current
±1
A max
Input Capacitance
5
35
pF typ
REFERENCE INPUT/OUTPUT
VREFIN Input Voltage
2.5
V
±1% for Specified Performance
VREFIN Input DC Leakage Current
±1
A max
VREFIN Input Capacitance
5
25
pF typ
VREFIN Input Current
6
220
A typ
External Reference
VREFOUT Output Voltage
2.5
V typ
VREFOUT Error @ 25
°C
±50
mV typ
VREFOUT Error TMIN to TMAX
±100
mV max
VREFOUT Output Impedance
1
typ
LOGIC INPUTS
Input High Voltage, VINH
VDRIVE –1V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
±1
A max
Input Capacitance, CIN
5
10
pF typ
LOGIC OUTPUTS
Output High Voltage, VOH
7
0.7
× VDRIVE
V min
Output Low Voltage, VOL
7
0.3
× VDRIVE
V max
Floating-State Leakage Current
±10
A max
Floating-State Output Capacitance
5
10
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
24
MCLKs
Track/Hold Acquisition Time
100
ns max
Sine Wave Input
70
ns max
Full-Scale Step Input
Throughput Rate
1
MSPS max
(VDD = 5 V
5%, AGND = DGND = 0 V, VREF = External, fSAMPLE = 1 MSPS; all specifica-
tions TMIN to TMAX and valid for VDRIVE = 2.7 V to 5.25 V, unless otherwise noted.)
A
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